自组装三维多孔共掺杂TiO2可见光光催化性能及耐久性的研究

Spongelike codoping TiO2 with three-dimensional porous structure will be prepared by self-assembly method in a tube reactor, with the aim of increasing the contacting area and mixing efficiency of reagent and photocatalyst, thereby enhancing the photocatalysist efficiency. The work will focus on the control and modulation of the pore structure of TiO2 crystalline in the tube channels, and its strong resisting ability against washing out and high durability for continuous-flow visible light photocatalysis. The mechanism of self-assembly, distribution of pore on the flowing state of liquid, and the absorption of visible light will be investigated in detail. The tube reactor will be built, wherein the TiO2 material can be tested in treatment of industrial waste water and contaminated air. The project will find a new method of building hierarchical porous and self-supporting TiO2 with enhanced photocatalysis efficiency, thus providing the scientific theory for the application in the industry.

本项目拟在管式反应器内自组装三维多孔海绵状共掺杂TiO2，以增加反应物和催化剂的接触面积、提高混合效率，从而大幅度提升管式反应器内光催化反应的效率。项目的目标是在管式反应器的通道内获得结构可控、孔的大小及密度可调、多孔海绵状、具有一定抗冲刷能力和耐久性的三维晶体。研究纳米晶体自组装的机制，探讨孔的大小和密度分布规律及其对流体流动状态和光吸收的影响；构筑连续光催化反应部件，探索其在可见光下连续光催化处理工业废气和废水等领域的应用可能。项目的开展可以建立一种构筑管式反应器内自组装三维多孔自支持海绵状纳米晶体的新方法，提高可见光光催化效率，为光催化的工程化提供科学理论依据。

本项目在管式反应器内自组装三维多孔海绵状共掺杂TiO2，从而增加反应物和催化剂的接触面积、提高混合效率，进而提升管式反应器内光催化反应的效率。实现了在管式反应器的通道内获得结构可控、孔的大小及密度可调、多孔海绵状、具有一定抗冲刷能力和耐久性的三维晶体的项目目标。研究了纳米晶体自组装的机制，探讨了孔的大小和密度分布规律及其对流体流动状态和光吸收的影响；构筑了连续光催化反应部件，探索了其在可见光下连续光催化处理工业废气和废水等领域的应用可能。项目的开展建立了一种构筑管式反应器内自组装三维多孔自支持海绵状纳米晶体的新方法，提高了可见光光催化效率，为光催化的工程化提供了科学理论依据。